It depends, the center line you speak of, does it go from side to side? Or top to bottom? Side to side you have problems in the vertical circuit. Top to bottom you have a problem in the horizontal circuit. Not picture tube problem. If it is an analog tv and depending on how old it is. What an estimate and the actual repair would be you are better off buying a new one.

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Thin vertical lines in the middle of the picture mean that the panel is gone. Here an example of lines from bad panel in Toshiba LCD:Line Picture. (discussion: Avsforum). Sometimes the lines can be dark or in bright color.

Your picture tube is on its last leg. Best enjoy the old girl while you can. This would be way more expensive to repair than it is worth if you can still find a tube for this set. That has been a good set to last that long. Not too many of them left out there. Thanks for using fixya.

The unit has lost its green video information. This can be a picture tube or a green drive problem. The only colors you are getting are red and blue thus the purple picture. All picture tubes have red, green and blue guns to make all the colors needed for a normal picture. It will take some troubleshooting to determine whether it is a drive problem or the picture tube itself. Have a repair shop check it out for you. A 36" TV is worth a check out fee. Thanks for using Fixya. Let me know how it goes.

No, your picture tube is fine. This is a problem in the vertical circuit that deflects the beam up and down. This repair is fairly typical across most television brands and should not cost too much to fix. I don't want to quote another shops pricing but from us this would run about $150.00 to fix.

With the set being 12 years old, I'm sure the picture tube is near the end of its useful life. You probably have a defective semiconductor, either an IC or transistor that has gone up giving you no color, but with the green picture, it is not likely worth repair.

It is a 20" TV set and will most likly, im afraid to tell you, cost more to fix then it is worth. The problem is a bad Picture tube, an intermittant CRT socket or the video jungle IC is intermittant. If you want to invest in an estimate, check out first if it will go towards the repair, as then maybe you can get it fixed at a good price, as long as the picture tube is not the problem Good Luck